| 1. | The standard is designed to give a new technical solution for a broad range of applications , such as very low bit rate conversational services and entertainment quality broadcast , interactive video - on - demand services etc . for the enhancement of the coding efficiencies , the new standard adopts new tools as following : multiple reference pictures , variable block - size with seven block sizes in motion prediction , quarter - pixel accuracy for motion vector , short word - length integer transform , context - adaptive entropy coding and loop filter deblocking
H . 264 / avc标准支持从低带宽、高误码率的无线移动视频通信到高带宽、低误码率的有线视频广播等多种应用,因此,日益受到业界的关注。为了实现更高的编码效率, h . 264 / avc标准采用了很多新的编码技术,如多参考帧预测、多尺寸编码块模式、 1 / 4像素精度运动矢量、整数变换量化、基于内容的熵编码、新型帧内预测、去除方块效应的滤波器等。 |
